Abstract: In accordance with aspects of the present principles, the quality of voice traffic and bandwidth utilization for data communication over a wireless multi-hop network may be improved. In an implementation of the present principles, a data packet transmission rate over a wireless multi-hop network may be controlled at an interface between the multi-hop network and a wired network based on a voice packet quality measure calculated from network parameters. Voice and data traffic quality and efficiency may be further improved by reordering a packet transmission queue at the interface to avoid timeout and/or varying a packet queue length at the interface using an acknowledgement window transmitted to a data packet sender.

Abstract: A system and method for enabling primary and secondary user coexistence for a wireless system includes performing spectrum sensing in a channel to determine primary user usage in a first mode of operation. It is determined whether the primary user usage includes a pattern of usage. If a pattern of usage is detected, a second mode of operation is engaged which includes at least reducing spectrum sensing by a secondary user to permit secondary user usage of the channel.

Abstract: In accordance with aspects of the present principles, the quality of voice traffic and bandwidth utilization for data communication over a wireless multi-hop network may be improved. In an implementation of the present principles, a data packet transmission rate over a wireless multi-hop network may be controlled at an interface between the multi-hop network and a wired network based on a voice packet quality measure calculated from network parameters. Voice and data traffic quality and efficiency may be further improved by reordering a packet transmission queue at the interface to avoid timeout and/or varying a packet queue length at the interface using an acknowledgement window transmitted to a data packet sender.

Abstract: Systems and methods are disclosed for deploying one or more antennas by: mounting one or more antennas on a moving platform; searching a physical space and a signal space to locate a predetermined position for the one or more antennas to optimize data transmission; and actuating the moving platform to the predetermined position.

Abstract: The present invention advantageously provides a method for estimating an interference map for nodes in a network by continuously broadcasting packets from a jammer node at maximum capacity, simultaneously recording a delivery ratio from the jammer node to every other network node, concurrently, for all nodes except the jammer node, randomly broadcasting data, recording a sender interference of the node to another node having the sender interference from the jammer node, recording a receiver interference of the second node to the first node having the receiver interference from the jammer node, and performing each of the previous steps for all network nodes. The sender interference can be determined by broadcasting the data at a fixed rate when the jammer node's sender interference disabled, or by unicasting data from a node more than once to a nonexistent address, and measuring a time difference between receiving the broadcast data.

Abstract: A method of transporting Voice-Over-Internet-Protocol Packets in a wireless mesh network wherein VoIP packets from independent call flows are aggregated prior to transmission over multiple hops of the wireless network. Significant performance improvements are realized including the number of simultaneous VoIP calls supported and overall Quality-of-Service (QoS) for the individual calls.